One 75-watt bulb gives more light than three 25-watt bulbs.
57
Pure water (H2O) does not conduct electricity on its own.
46
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Billions of neutrinos pass unnoticed through your body every second.
6
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
The earth is approx. 6,588,000,000,000,000,000 tons.
175